Button sewiig machine



(No Model.) 3 Sheets-Sheet 2. L. J. DRISCOLL.

BUTTON SEWING MACHINE.

No. 395,384. Patented Jan. 1, 1889.

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N, PETERS. Plwm-Lilhn n mr, Washington. 0,6.

(No Model.) 3 Sheets-Sheet 3. L. J. DRISOOLL.

BUTTON SEWING MACHINE.

No. 395,384. Patented Jan. 1,1889.

W/ TA/EEEEE UNITED STATES PATENT FFICE.

LAWRENCE J. DRISCOLL, OF SOMERVILLE, MASSACHUSETTS, ASSIGNOR, BY

MESNE ASSIGNMENTS, TO THE UNION BUTTON SElVING MACHINE COM- PANY.

BUTTON SEWING MACHINE.

SPECIFICATION forming part of Letters Patent No. 395,384, dated January1, 1889.

Application filed September 4, 1886- Serial No. 212,677- (No model.)

T to whom it may concern:

Be it known that I, LAWRENCE J. DRISCOLL, of Somerville, in the countyof Middlesex and State of Massachusetts, have invented certain new anduseful Improvements in Button-Sewing Machines, of which the following isa specification.

My invention relates to button-sewing machines, and is an improvementupon certain devices shown and described in the patent granted to meDecember 16, 1884, No. 309,209.

It is the objectof my invention to simplify and otherwise improve themechanism connected withv the main shaft, whereby when the machine isoperated to sew on a button having four holes the ln'itton-carrier maybe shifted after a certain number of stitches have been taken in twoholes of the button to bring the other two holes into proper position tohave the needle stitch therethrough.

It is also the obj cct of my invention to i1nprove the means whereby theshipper-rod is automatically actuated-to stop the machine after apredetermined number of stitches have been taken through the holes ofthe button and the fabric sufficient to attach the button to suchfabric.

It is also the object of my invention to provide means connected withthe presser-foot 0 and lnltton-carrier, or devices for raising the same,whereby when the button-carrier and presser-foot are raised for thepurpose of inserting a button and manipulating the fabric and it isdesired to operate the machine to 3 5 sew on a four-hole button saidlnitton-carrier may be automatically set so as to have the needleoperate first through twoholes or eyes of the button and be in positionto be shifted to have the needle operate tln-ough other eyes of thebutton, as aforesaid.

lfIaving thus indicated the nature and purposes of my invention, I willnow proceed to fully explain its construction and operation, havingreference to the accompanying drawings, and to the letters of referencema'rlced thereon, forming a part of this specification, the inventionbeing particularly pointed out in the claims hereinafter made.

Of the drawings, Figure 1 represents a top plan view of a button-sewingmachine em bodying my invention. Fig. 2 represents a side view of thesame. Fig. 3 represents a bottom plan View of the same, and Fig. 4: is

a detail view hereinafter referred to. Figs.

5 and 6 are detail views of the pattern-wheel and associated parts. Fig.7 is a detail view of the button-holder.

Similar letters of reference indicate similar parts in all of thefiglilres.

A represents the bed-plate; B, the overhanging arm; C, theneedle-baractuating shaft; 1, the clutch mechanism forconnecting thefly-wheel with and (lisconi'iecting it from the main shaft; 1, theSlllPDOlFl'Od; K, an arm rigidly secured to or on the shipper-rod,adapted to be operated so as to bring it within the path of the latch ordog L on the main shaft to disconnect the same from the .liy-wheel; M,the button holder or carrier; N,

a lever or link above the bed-plate and imme- 7o diately connected withthe button-carrier for actuating the same, so that the needle willoperate first through one hole and then the other of any two holesthrough which it may be desired to take stitches, and O the bobbin andits associated devices.

The foregoing parts may all be of the form and construction representedin my patent, No. 309,209, aforesaid, and other parts necessary tocompletely equip a button-sewing ma- 8o chine, not particularlydescribed hereinafter and in no wise modified or changed by me, may bethe same as shown and described in said patent, which may be referred tofor a fuller understanding of my invention.

In carrying out in y iinprovcmcuts-I provide the main shaft H with aworm, a, the threads of which intermesh with the teeth of aworn1- gear,1), termed by me a pattern-wheel, which wheel is provided on itslowerface with small triangular pattern-lugs or cam-pieces 0 cl. Aslide, 2, is attached to studs or posts extending down from thebed-plate, so as to have a longitudinal. movement thereon to the extentpermitted by the slots f, through which 9 5 one of the attachiiigscrewsor like contrivances extend, the spring g, attached by one end to thebedplateand by the other to said slide, tending to hold the latter in aposition toward the wheel I), so that in the rotation of said wheel theinclined faces of cam-pieces 0 will come in contact with the inclinedend of finger h, form ed on the forward end of slide 9, and move saidslide in the directionot' the arrow marked thereon in Fig.

Slide 6 has a notch, 1', formed in its rear edge atits forward end, intowhich the lower end,j, of the locking-lever 75, secured on theshipper-rod J is permitted to drop when slide 6 is moved in thedirection of the arrow, aforesaid, it being umlerstood that the end j ofthe sliipper-rod,when not permitted to drop in the notch i of the slide6, will ride on the rear face, c, of said slide, as shown in Figs. 2 and3.

Z represents a lever pivoted at m. to the bed of the machine and havinga downwardly-extending arm, '12, formed on its inner end, the lower endof which arm is provided with alaterally-proj ectin g finger, 0, ektendin out of the path of travel of the cam-pieces (Z. (See parti cularlyFigs. 5 and 6.) Lever Z is provided on its forward end with a hook orcatch, Z (shown in Figs. 3 and 5,) adapted to hook over or catch uponthe adjacent endof a lever, 2), as represented in Figs. and 5, pivotedat to the bed of the machine, the opposite end of which lever 13 ispivotally connected, as at T to one end of a link, 4', the latter beingpivoted at its other end, as at o to a link, 0", which in turn ispivoted, as at 1*, to a vibratory link or lever, r, pivoted at 7' to thebed of the machine.

r indicates the pivot upon which. the button-carrier vibrates, andwhereby it is connected to link 0, so that as link '7' is shifted, asbefore explain ed, the button-carrier will be shifted also, said pivot Textending through a slot in the needle-plate or bed of the machine, asindicated in dotted lines at 11: Fig. 7

A spring, .9, connected by one of its ends to the outer-end of leverlandat its other end to the adjacent end of lever p, tends to operate saidend of lever I to draw its hook or catch Z over the contacting end oflever 1). (See Fig. As shown, locking lever or handle 7- extends througha slot in and above the bed of the machine, and is rigidly secured belowthe bed to the shipper-rod J.

trepresents a rod extending parallel with shipper-rod J and adapted torock in suitable bearings secured to the bed of the machine, tothei'orward end of which rod t is rigidly secured a finger, u, adaptedat its upper end to rest against the outer edge of the rearward end oflever 19. (See Fig. 2.) At its opposite or rear end rod t is providedwith an arm, o, extending horizontally toward the center of the machine,and connected at its inner end by a link, 10, with the rearward end ofalever, (l3, pivoted at y to the overhanging arm and having its forwardendextendin g under a lug or projection, 2, extending out from thepresser-bar, as shown in Figs. 1 and 2.

It is to be noticed that the points of the cam-pieces c extend outwardnearer to the periphery of the wheel I) than do the cam-pieces (I, sothat the latter may pass the point it of slide (2 without coming incontact with and actuating the same, and that the cam-pieces (Z are ofgreater depth or thickness than campieccs 0, so that the latter may passabove finger o of arm 91 without coming in contact with or influencingthe same, all, as clearly portrayed in Figs. 5 and (J.

A pin (not shown) extends down from lever Z (see Fig. 1) through thebed-plate into the groove in cam l on main shaft H. Lever Z is connectedwith lnltton-carrier M through the medium of lever or link J.

The operation of my improvements thus far described will now be readilyunderstood. It being supposed that a four-hole button has been placed inthe button-carrier, and that' one of the cam-pieces c on thepattern-wheel I) has just passed the point h of slide 6, and thatotherwise the parts are in the position in which they are represented inFigs. '3, 5, andt3,by rotating the fly-wheel G in the direction of thearrow marked thereon, and consequently the main shaft in the samedirection, the machine will be operated to sew first through one andthen the other of two holes in a four-hole button until an inclinedcampiece, (I, on the wheel Z) comes in contactwith the finger 0 on arm nof lever Z, when said lever will be actuated to throw its outer orcatch. end, Z out of engagement with the adjaccnt end of lever p, whichlever will be moved li y spring a to actuate link 2' and attached parts,hereinbelore described, and through the same the button holder orcarrier, so as to bring the other two holes of the button in line withthe needle, when the operation of sewing proceeds, as before, throughsaid last-mentioned holes of the button. Set screw '1) limits orregulates the extent of throw forward of lever p, occasioned by theoperation of spring a. \Vhenthe sewing has progressed through thelast-mentioned holes of the button and until wheel I) has been turned tobring the inclined end of one of the campieces 0 into contact with theend 71 of slide 6, said slide will be moved rearwardly or in thedirection of the arrow marked thereon, so as to permit the lower end, oflocking-lever 75, fast on shipper-rod J, to drop into notch 1', said rodbeing rocked so as to cause this operation by means of spring 0. (SeeFig.6.) This act will bringarm K in the line of travel of dog L of theclutch mechanism I and disconnect the main shaft from the driving means,and thus stop the machine. This completes the sewing on of a four-holebutton. The operator now draws down the rear end of lever m, whichoperation raises the presserbar and its presser-foot and button-carrierfor the insertion of a new button, and at the sametime through themedium of the link 10, attached to the inner end of arm '0, the otherend of which is secured to rod 15, rocks said rod 2f, so as to cause theupper end of finger a to press the rearward end of lever p inward, so asto permit the contacting hooked end of lever Z to snap thereover andhold the parts in the position. represented in Figs. and 5. A buttonhaving been placed in position in the button-carrier and it beingdesired to again start the machine to repeat the operation of sewing ona button,

before mentioned, the upper end of shipper-lever his moved inward, thusrocking the shipping-rod, so as to disengage arm K from dog L, when theclutch mechanism will re connect the main shaft H with the drivingmeans, and the slide 8 will. be moved by spring gin a direction oppositethe arrow i'narked thereon in Fig. 3, and thelower end,j, ofshipper-lever 711 will rest on the rear face of slide 6, holding themachine in operative position.

It is obvious that by replacing cam-pieces d with cam-pieces c, anddispensing with the use of the button-carrier-shifter means, andproperly adjusting the position of. the button-carrier'four two-holedbuttons may be sewed on at each revolution of the patternwhcel Z) in themachine as here organized, the machine being stopped after each two-holebutton has been sewed on. Other changes in the form and arrangement ofparts Within the limits of mechanical skill may be made withoutdeparting from the nature or spiritof the in venti on It has not beenconsidered necessary to explain more fully the operation of the meansfor moving the button-carrier, so that the needle will descend firstthrough one eye of the two presented to it for its operation therethrough, and then the other, or to describe in detail the other parts ofthe machine to which my invention does not extend, as all this is, ashas been said, the same as disclosed in my before-mentioned patent.

It may be stated that the worm on the main shaft, and the worm-wheelprovided with cams or wipers, which worm-wheel is directly operated fromthe main shaft by said worm, as well also as the contrivancesimmediately connected with the worm-wheel, are important features of myinvention, being simple in construction, compact in form, and cerlain inoperation.

I am aware that it has been proposed in button-hole sewing-machines toemploy a cam-wheel provided with devices adapted to operate to trip themechanism connected with stop-motion contri van ces but such cam-wheelwas operated by means of a ratchet-wheel and pawl and devicesintermediate of the pawl and a cam on the main shaft. These devices,unlike my improvements, are complicated in character, uncertain inoperation, and liable to become disarranged or disorganized.

Having thus described my invention, what I claim is 1. A sewingmechanism, a button-carrier, mechanism to reciprocate it to presentfirst one hole of a button and then another to the needle, lockingdevices consisting of a lever,

Z, a lever, p, and links or levers intermediate of the lever p andbutton-carrier to hold the latter in one reciprocatingposition, a springto move the button-carrier to a second reciprocating position, a rotaryshaft, a worm thereon, a wheel engaging and operating said worm, and acam-piece or wiper on said wheel, said cam piece being constructed andarranged to engage the lever Z, whereby said lever may be moved torelease the locking devices and permit the sprin to move thebutton-carrier into the second-mentioned position, substantially ashereinbelore set forth.

2. In a button-sewing machine, the main shaft, means to drive the same,a clutch mechanism adapted to be operated to connect the driving meanswith themain shaft and disconnect it therefrom, a worm 011 the mainshaft, a gear provided with a cam-piece or wiperengaged with andoperated by said worm, a shipper -rod provided with devices connectedwith the clutch mechanism to hold the same out of operative position andallow the driving means to become connected with. the main shaft, ashipper lever or handle, it, on said rod, a spring to rock saidshipper-rod to cause its connected devices to operate said clutchmechanism to disconnect the driving means from the main shaft, and aslide, e, constructed and arrangedto engage said shipper lever or handle7.: to lock or hold said shipperrod and its connected devices againsttheten sion of said spring and out of operative position with respect tothe driving means, said slide being also arrai'iged with respect to thecam-piece or wiper on said worm-wheel to be engaged thereby and be movedto permit the shipper lever or handle to be released or unlocked, andits connected devices to be moved by said spring-into operativeposition, all combined substantially as hereinbefore set forth.

The sewing mechanism, a button-carrier and mechanism to moveit topresent first one hole of a button and then another to the needle,locking devices to hold the buttonearrier in one reciprocating position,a spring to move the button-carrier into a second reciprocatingposition, a lever pivoted to the machine constructed and arranged toengage said buttoncarrier to raise the same, a rod provided with alinger constructed to engage said locking means and connected devices tomove the same into the first-mentioned position, and a link connectingsaid rod with said lever, whereby when the latter is operated to raisethe b Litton-carrier said rod will be rocked and said finger operated,as before stated, all

combined substantially as described.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses, this 25th day of August, 1886.

LAWRENCE J. DRISCOLL. Vitnesses:

ARTHUR W. CRossLEY, C. F. BROWN.

IIO

